Dengue comes in four serotypes, and while Sanofi's treatment did well against variants 1, 3 and 4, it charted just 34.7% efficacy in serotype 2, missing statistical significance in one of Asia's most common forms of the disease.
4 प्रतिशत ही असर कर पाई। ये एशिया में सबसे ज्यादा पाया जाने वाला डेंगू है, जिस पर टीका असर नहीं दिखा सका।